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98 j
That depends how high you lift it.The work is mgh (mass x gravity x height). If the mass is in kilograms, gravity is in newton/kilogram (Earth gravity is about 9.8 newton/kilogram), and the height is in meters, then the work will be in joules.
Yes, work is done if you lift a brick.
work=force(distance) work=500(20) work=10000 joules
The height is irrelevant. The energy required depends on the height; the force does not. The weight of an object, and therefore the force required to lift it, is mass x gravity - about 500 Newtons.The height is irrelevant. The energy required depends on the height; the force does not. The weight of an object, and therefore the force required to lift it, is mass x gravity - about 500 Newtons.The height is irrelevant. The energy required depends on the height; the force does not. The weight of an object, and therefore the force required to lift it, is mass x gravity - about 500 Newtons.The height is irrelevant. The energy required depends on the height; the force does not. The weight of an object, and therefore the force required to lift it, is mass x gravity - about 500 Newtons.
a compressor cant lift..
The potential energy of the book on the shelf is equal to the work done to lift the book to the shelf. This is because the potential energy of an object at a certain height is equivalent to the work done against gravity to lift it to that height.
Work = Force x DistanceForce = Mass X Gravity (Near earth approximation)SoWork = 30kg x 9.8 m/s2 x 20m = 5880 joules
98 j
C.50 j
That depends how high you lift it.The work is mgh (mass x gravity x height). If the mass is in kilograms, gravity is in newton/kilogram (Earth gravity is about 9.8 newton/kilogram), and the height is in meters, then the work will be in joules.
Yes, work is done if you lift a brick.
When you lift a barbell from the floor directly to shoulder height it's call a "clean."
It reduces the force needed to move the load up. Just think of it, it takes less force to push a cart with 100 kg of bricks on a slope or is it easier to lift it up directly to a height of 10m?
Gravity does not lift. The force is doing the work by lifting the riders. When the riders come down from the 60 meter height, then gravity will be at work.
No.
Energy can neither be created nor be destroyed. When we lift certain thing to a certain height we have to done some work on it . This energy is stored in the form of potential energy. Potential energy = mass * acceleration due to gravity * Height of object from ground. As height increases PE increases.